WO2002102150A1 - Method for controlling the application of an insecticide and composition therefor - Google Patents

Method for controlling the application of an insecticide and composition therefor Download PDF

Info

Publication number
WO2002102150A1
WO2002102150A1 PCT/IB2002/002205 IB0202205W WO02102150A1 WO 2002102150 A1 WO2002102150 A1 WO 2002102150A1 IB 0202205 W IB0202205 W IB 0202205W WO 02102150 A1 WO02102150 A1 WO 02102150A1
Authority
WO
WIPO (PCT)
Prior art keywords
insecticide
indicator
insecticide composition
nitrophenol
composition according
Prior art date
Application number
PCT/IB2002/002205
Other languages
French (fr)
Inventor
Hisham Mohamed Mahgoub
Amina Ahmed Mahmoud Fahmy
Original Assignee
Flit S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flit S.A. filed Critical Flit S.A.
Priority to US10/481,388 priority Critical patent/US20040175405A1/en
Publication of WO2002102150A1 publication Critical patent/WO2002102150A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/08—Magnoliopsida [dicotyledons]
    • A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

  • the present invention relates to a method for controlling the application of an insecticide or pesticide on a surface, as well as to an insecticide or pesticide composition, which is appropriate for implementing this method.
  • insecticide products in the home is necessary for the elimination and control of such damaging pests as cockroaches, ants, silverfish, etc. However, there is a concern that such products should not be applied in places where they could come in contact with humans or pets.
  • a common method of application is the aerosol, whereby a spray or mist is dispensed from a pressurised container.
  • the spray cannot be easily controlled, and thus there is overspray which can go onto areas where the insecticide should not be.
  • the liquid on the surface cannot be easily observed, it is very difficult to determine if the right amount of material is being applied. Too little product will be ineffective, and too much products are both wasteful and potentially harmful to the environment.
  • the purpose of this invention is to provide a method for controlling insect pests by the application of an insecticide product that is applied to surfaces commonly travelled by insect pests, and that the insecticide, when applied, is coloured, but after a certain period of time, the colour fades so that the presence of the insecticide is unobtrusive.
  • the advantage for the user is that the colour provides a visual guide to easily show where the product has been applied, thus enabling the user to control both the amount and placement of the insecticide.
  • the insecticide colour fades, and thus its presence becomes unobtrusive. Overspray is clearly revealed and the product may be cleaned from those areas where it is not intended. If necessary, the insecticide applied can be revealed again, by simply remoistening the surfaces concerned, for example by spraying water thereon.
  • a first object of the present invention is a method for controlling the application of an insecticide on a surface, which comprises the use of an insecticide composition including a pH indicator colorant in an aqueous medium changing to colourless after drying in the air on said surface, and the recoloration of the insecticide composition by remoistering selected areas of the surface to be checked.
  • a second object of the invention is an insecticide composition, which can be used to implement the above method, and which comprises at least one insect killing agent in aqueous solution, a coloured pH indicator which becomes colourless upon exposure to air and at least a compound for adjusting the pH of the composition to a pH at which the pH indicator is coloured.
  • pH indicator it can be mentioned for example 4-nitrophenol and phenolphthalein, and possibly 3-nitrophenol and thymolphthalein.
  • the 4-nitrophenol gives a yellow colour to the composition at a pH of about 7.0 and higher, whereas phenolphthalein necessitates a high pH value of at least 9.0 to be coloured (pink-red).
  • the level of the pH indicator is generally of 0.01 to 1.0 wt %, preferably of 0.05 to 0.5 wt %, so that the level is not too high resulting in a colour change time which is too long and may cause staining, and not too low resulting in an insufficiently intense colour.
  • the water content is comprised between about 25 and 85 wt %, depending on the presence or not of a propellant.
  • insect killing agents the known ones can be used, for example n- pyrethrins, malathion, boric acid, tetramethrin, esbiothrin, Etoc, neopynamineforte, deltamethrin, propoxur, cypermethrin, Gokilaht S, etc.
  • Each of these agents is generally used at a level of 0.01 to 1.0 wt % according to their respective solubility and toxicity.
  • aqueous insecticide was prepared and packaged under pressure together with a usual propellant (LPG) :
  • This composition of a pH of about 7.0 and of a yellow colour was applied by spraying to various kind of surfaces, such as wood, painted wood, painted walls, ceramic tile, plastic (polyethylene), glass and stainless steel.
  • the insecticide activity was tested and found in agreement with the usual requirements of similar composition. Other levels of 4-nitrophenol were tested, and it was shown that with 0.05 wt % the yellow colour was somewhat faint but with a shorter colour changing time (about 25 min.), whereas with highest content, i.e. 0.5 resp. 1 .0 %, the colour change takes more time, i.e. 70 resp. 120 min. Phenolphthalein was also tested at levels of 0.01 to 1.0 wt %, which all gave acceptable results and a colour change of about 40 min. The pH of the composition was initially adjusted to 9.4 using t ethanolamine.
  • the method according to the present invention was then further experimented, in that areas of the surfaces treated by the insecticide composition were remoistened, for example by simply spraying tap water (pH -7.5 - 8.5) thereon. It was thus confirmed that the remoistened areas become again yellow (respectively pink-red with phenolphthalein), so that it was possible to control the presence or the absence of the insecticide composition thereon.

Abstract

The invention relates to a method for controlling the application of an insecticide on a surface, which comprises the use of an insecticide composition including a pH indicator colorant in an aqueous medium changing the colourless after drying in the air on said surface, and the recoloration of the insecticide composition by remoistering selected areas of the surface to be checked.

Description

METHOD FOR CONTROLLING THE APPLICATION OF AN INSECTICIDE AND COMPOSITION THEREFOR
The present invention relates to a method for controlling the application of an insecticide or pesticide on a surface, as well as to an insecticide or pesticide composition, which is appropriate for implementing this method.
The use of insecticide products in the home is necessary for the elimination and control of such damaging pests as cockroaches, ants, silverfish, etc. However, there is a concern that such products should not be applied in places where they could come in contact with humans or pets.
A common method of application is the aerosol, whereby a spray or mist is dispensed from a pressurised container. However, it is typical of these products that the spray cannot be easily controlled, and thus there is overspray which can go onto areas where the insecticide should not be. Further, since the liquid on the surface cannot be easily observed, it is very difficult to determine if the right amount of material is being applied. Too little product will be ineffective, and too much products are both wasteful and potentially harmful to the environment.
The purpose of this invention is to provide a method for controlling insect pests by the application of an insecticide product that is applied to surfaces commonly travelled by insect pests, and that the insecticide, when applied, is coloured, but after a certain period of time, the colour fades so that the presence of the insecticide is unobtrusive.
The advantage for the user is that the colour provides a visual guide to easily show where the product has been applied, thus enabling the user to control both the amount and placement of the insecticide. After application, the insecticide colour fades, and thus its presence becomes unobtrusive. Overspray is clearly revealed and the product may be cleaned from those areas where it is not intended. If necessary, the insecticide applied can be revealed again, by simply remoistening the surfaces concerned, for example by spraying water thereon.
More particularly, a first object of the present invention is a method for controlling the application of an insecticide on a surface, which comprises the use of an insecticide composition including a pH indicator colorant in an aqueous medium changing to colourless after drying in the air on said surface, and the recoloration of the insecticide composition by remoistering selected areas of the surface to be checked.
A second object of the invention is an insecticide composition, which can be used to implement the above method, and which comprises at least one insect killing agent in aqueous solution, a coloured pH indicator which becomes colourless upon exposure to air and at least a compound for adjusting the pH of the composition to a pH at which the pH indicator is coloured.
As appropriate pH indicator, it can be mentioned for example 4-nitrophenol and phenolphthalein, and possibly 3-nitrophenol and thymolphthalein.
The 4-nitrophenol gives a yellow colour to the composition at a pH of about 7.0 and higher, whereas phenolphthalein necessitates a high pH value of at least 9.0 to be coloured (pink-red).
The level of the pH indicator is generally of 0.01 to 1.0 wt %, preferably of 0.05 to 0.5 wt %, so that the level is not too high resulting in a colour change time which is too long and may cause staining, and not too low resulting in an insufficiently intense colour.
The water content is comprised between about 25 and 85 wt %, depending on the presence or not of a propellant. As insect killing agents, the known ones can be used, for example n- pyrethrins, malathion, boric acid, tetramethrin, esbiothrin, Etoc, neopynamineforte, deltamethrin, propoxur, cypermethrin, Gokilaht S, etc. Each of these agents is generally used at a level of 0.01 to 1.0 wt % according to their respective solubility and toxicity. The present invention will now be illustrated more in details by the following example. Example :
The following aqueous insecticide was prepared and packaged under pressure together with a usual propellant (LPG) :
Compounds Wt %
Natural Pyrethrins 0.50
Malathion 1.00
Piperonyl Butoxide 0.20
Boric Acid 1.00
Sodium Benzoate 0.50
Isopropyl Alcohol 2.00
Sorbitan Monooleate 0.50
4-Nitrophenol 0.10
Water 39.20
Propellant (LPG) 55.00
TOTAL 100.00
This composition of a pH of about 7.0 and of a yellow colour was applied by spraying to various kind of surfaces, such as wood, painted wood, painted walls, ceramic tile, plastic (polyethylene), glass and stainless steel.
After about 40 minutes of exposure to air (including carbon dioxide), the composition was dried and the yellow colour disappeared.
The insecticide activity was tested and found in agreement with the usual requirements of similar composition. Other levels of 4-nitrophenol were tested, and it was shown that with 0.05 wt % the yellow colour was somewhat faint but with a shorter colour changing time (about 25 min.), whereas with highest content, i.e. 0.5 resp. 1 .0 %, the colour change takes more time, i.e. 70 resp. 120 min. Phenolphthalein was also tested at levels of 0.01 to 1.0 wt %, which all gave acceptable results and a colour change of about 40 min. The pH of the composition was initially adjusted to 9.4 using t ethanolamine.
The method according to the present invention was then further experimented, in that areas of the surfaces treated by the insecticide composition were remoistened, for example by simply spraying tap water (pH -7.5 - 8.5) thereon. It was thus confirmed that the remoistened areas become again yellow (respectively pink-red with phenolphthalein), so that it was possible to control the presence or the absence of the insecticide composition thereon.

Claims

1. Method for controlling the application of an insecticide on a surface, which comprises the use of an insecticide composition including a pH indicator colorant in an aqueous medium changing to colourless after drying in the air on said surface, and the recoloration of the insecticide composition by remoistering selected areas of the surface to be checked.
2. Insecticide composition comprising at least one insect killing agent in aqueous solution, a coloured pH indicator which becomes colourless upon exposure to air and at least a compound for adjusting the pH of the composition to a pH at which the pH indicator is coloured.
3. Insecticide composition according to claim 2, in which the pH indicator is
3-nitrophenol, 4-nitrophenol, phenolphtalein or thymolphthalein.
4. Insecticide composition according to claim 2 or 3, in which the content of pH indicator is of 0.01 to 1.0 wt %, preferably from 0.05 to 0.5 wt %.
5. Insecticide composition according to one of claims 2 to 4, in which the insect killing agent is one or more of the following compounds: n-pyrethrins, malathion, boric acid, tetramethrin, esbiothrin, Etoc, neopynamineforte, deltamethrin, propoxur, cypermethrin and Gokilaht S, each one being present at a level of 0.01 to 1.0 wt % according to their respective solubility and toxicity. cticide composition according to claim 2, which is as follows
Compounds wt %
Natural Pyrethrins 0.50
Malathion 1.00
Piperonyl Butoxide 0.20
Boric Acid 1.00
Sodium Benzoate 0.50
Isopropyl Alcohol 2.00
Sorbitan Monooleate 0.50
4-Nitrophenol 0.10
Water 39.20
Propellant (LPG) 55.00
PCT/IB2002/002205 2001-06-20 2002-06-12 Method for controlling the application of an insecticide and composition therefor WO2002102150A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/481,388 US20040175405A1 (en) 2001-06-20 2002-06-12 Method for controlling the application of an insecticide and composition therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP01114940.8 2001-06-20
EP01114940A EP1269842B1 (en) 2001-06-20 2001-06-20 Method for controlling the application of an insecticide and composition therefor

Publications (1)

Publication Number Publication Date
WO2002102150A1 true WO2002102150A1 (en) 2002-12-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/002205 WO2002102150A1 (en) 2001-06-20 2002-06-12 Method for controlling the application of an insecticide and composition therefor

Country Status (7)

Country Link
US (2) US20040175405A1 (en)
EP (1) EP1269842B1 (en)
AT (1) ATE279859T1 (en)
DE (1) DE60106586D1 (en)
EG (1) EG23219A (en)
HK (1) HK1053764B (en)
WO (1) WO2002102150A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008060355A2 (en) * 2006-10-03 2008-05-22 Allegiance Corporation Color change surgical prep solution

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7910531B2 (en) 2004-06-17 2011-03-22 C2C Technologies Llc Composition and method for producing colored bubbles
US8110608B2 (en) 2008-06-05 2012-02-07 Ecolab Usa Inc. Solid form sodium lauryl sulfate (SLS) pesticide composition
US8968757B2 (en) 2010-10-12 2015-03-03 Ecolab Usa Inc. Highly wettable, water dispersible, granules including two pesticides
US10405552B2 (en) 2017-05-22 2019-09-10 S. C. Johnson & Son, Inc. Composite insecticidal composition

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JPS56131684A (en) * 1980-03-21 1981-10-15 Earth Chem Corp Ltd Composition capable of changing color tone with time
JPS6051101A (en) * 1983-04-20 1985-03-22 Toppan Printing Co Ltd Volatile insecticidal sheet with indicator
EP0130675A2 (en) * 1983-05-02 1985-01-09 Sartomer Company, Inc. Chemical composition for the detection of water and probe containing it
GB2187387A (en) * 1986-02-11 1987-09-09 Gouws & Scheepers Pty Ltd Agricultural chemical concentrate

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008060355A2 (en) * 2006-10-03 2008-05-22 Allegiance Corporation Color change surgical prep solution
WO2008060355A3 (en) * 2006-10-03 2009-07-09 Allegiance Corp Color change surgical prep solution
AU2007320012B2 (en) * 2006-10-03 2013-05-09 Care Fusion 2200, Inc Color change surgical prep solution
US9101134B2 (en) 2006-10-03 2015-08-11 Carefusion 2200, Inc. Color change surgical prep solution

Also Published As

Publication number Publication date
ATE279859T1 (en) 2004-11-15
DE60106586D1 (en) 2004-11-25
EG23219A (en) 2004-08-31
HK1053764B (en) 2005-08-05
HK1053764A1 (en) 2003-11-07
EP1269842A1 (en) 2003-01-02
US20080112992A1 (en) 2008-05-15
US20040175405A1 (en) 2004-09-09
EP1269842B1 (en) 2004-10-20

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